CN212072141U - Miniature positioning pin capable of automatically positioning and clamping - Google Patents
Miniature positioning pin capable of automatically positioning and clamping Download PDFInfo
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- CN212072141U CN212072141U CN202020638840.1U CN202020638840U CN212072141U CN 212072141 U CN212072141 U CN 212072141U CN 202020638840 U CN202020638840 U CN 202020638840U CN 212072141 U CN212072141 U CN 212072141U
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- pin
- steel balls
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- spring
- shell
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Abstract
The utility model discloses a but tight miniature locating pin of automatic positioning clamp, including general base, set up a plurality of mounting holes that run through general base surface on the general base, threaded connection has the hexagonal screw in each mounting hole, the tip thread tightening of hexagonal screw has a locating pin, the locating pin is including the round pin shell that is "bullet shape", be equipped with two steel balls in the round pin shell, be equipped with the spring between two steel balls, two steel balls pass through the spring and realize connecting, two steel balls set up in the round pin shell with sliding relatively, the slip direction perpendicular to of steel ball sells the axis of shell, under the elasticity of spring, some salient in the outer wall of round pin shell of two steel balls. The positioning pin realizes the fixation between the universal base and the dental cast through the spring and the steel ball, and has the purpose of facilitating the connection between the dental cast and the universal base.
Description
Technical Field
The utility model relates to a dental cast location structure field, concretely relates to but automatic positioning presss from both sides tight miniature locating pin.
Background
On the automatic assembly line of full-automatic stealthy tooth unscrambler, need put the production line with the dental model through the robot on, because everyone's tooth is all not of uniform size, and the tooth that needs the correction has all become the shape, industrial robot's anchor clamps can not satisfy the various teeth of customization, need design a general base and install with the dental model of everyone customization, the industrial robot of being convenient for snatchs, inhale operation such as putting, every dental model is installed and is constituteed a combination on a general base.
The existing dental model is mostly fixed and installed on a universal base in a steel needle manual mode, and the process of automatic production is greatly hindered.
Disclosure of Invention
In order to overcome the defects in the prior art, the utility model provides a but automatic positioning presss from both sides tight miniature locating pin, it has the purpose of being convenient for the connection of dental cast and general base.
In order to realize the above-mentioned purpose, the utility model discloses a but tight miniature locating pin of automatic positioning clamp, including general base, set up a plurality of mounting holes that run through general base surface on the general base, threaded connection has the hexagonal screw in each mounting hole, the end thread fixing of hexagonal screw has a locating pin, the locating pin is including being the round pin shell of "bullet shape", be equipped with two steel balls in the round pin shell, be equipped with the spring between two steel balls, two steel balls pass through the spring and realize connecting, two steel balls set up in the round pin shell with sliding relatively, the slip direction perpendicular to axis of round pin shell of steel ball, under the elasticity of spring, partly salient in the outer wall of round pin shell of two steel balls.
Further, the pin housing has a length in the range of 12.48-12.52 mm.
Furthermore, the pin shell comprises a conical top part and a cylindrical tail part which are integrally arranged, and the length of the tail part ranges from 8.98mm to 9.02 mm.
Furthermore, a round angle of 0.3mm is arranged at the end part of one end of the top part far away from the tail part.
Furthermore, a chamfer angle of 0.5mm is arranged at the end part of one end of the tail part, which is far away from the top part.
Further, the diameter of the tail part ranges from 5.986 mm to 6.014 mm.
Further, the included angle of the top longitudinal section is 60 degrees.
Further, the mounting hole sets up 3 altogether.
Has the advantages that: under the elasticity of the spring, the two steel balls protrude out of the surface of the positioning pin, when the positioning pin fixes the dental cast, the dental cast enables the two steel balls to compress the spring, and under the elasticity of the spring, the two steel balls fix the dental cast through elastic force.
Drawings
The invention will be further described and illustrated with reference to the accompanying drawings.
FIG. 1 is a schematic view of the connection structure of the dental cast, the positioning pin and the universal base of the present invention;
FIG. 2 is a schematic view of the dental cast and the universal base;
fig. 3 is a schematic view of the internal structure of the positioning pin.
Reference numerals: 1. a universal base; 2. a hex screw; 3. mounting holes; 4. positioning pins; 5. a pin housing; 6. a steel ball; 7. a spring; 8. a dental cast; 9. and (4) a groove.
Detailed Description
The technical solution of the present invention will be more clearly and completely explained by the description of the preferred embodiments of the present invention with reference to the accompanying drawings.
Examples
As shown in fig. 1 and fig. 2, the utility model provides a but tight miniature locating pin 4 of automatic positioning clamp, including general base 1, threaded connection has three hex head screw 2 on general base 1, has seted up on general base 1 and has supplied hex head screw 2 to revolve the mounting hole 3 of twisting, and mounting hole 3 runs through general base 1. The three hexagon screws 2 are arranged on the universal base 1 in a triangular shape along the surface of the universal base 1. The end part of each hexagon screw 2 is provided with a positioning pin 4, and the hexagon screws 2 are screwed into the positioning pins 4, so that the hexagon screws 2, the universal base 1 and the positioning pins 4 are fixedly connected.
Firstly, dental model data are obtained after 3D scanning of a dental model, 3D editing is carried out on the data, the characteristics of the positions of the mounting holes corresponding to the universal base are added, then the edited data are led into a 3D printer to print the universal base and the positioning pins matched with the dental model, and then the dental model can be mounted on the universal base through a manipulator. After the dental model is installed on the universal base, subsequent processing can be according to universal base discernment dental model, then follow-up processing equipment department is sent with dental model and universal base to the rethread manipulator and is processed.
As shown in fig. 3, the positioning pin 4 includes a "bullet" shaped pin housing 5, two steel balls 6 with the same specification are arranged in the pin housing 5, a spring 7 is arranged between the two steel balls 6, the two steel balls 6 are connected by the spring 7, the two steel balls 6 are arranged in the pin housing 5 in a relatively sliding manner, the sliding direction of the steel balls 6 is perpendicular to the axis of the pin housing 5, under the elastic force of the spring 7, a part of the two steel balls 6 protrudes out of the outer wall of the pin housing 5, but the two steel balls cannot completely slide out of the pin housing 5.
As shown in fig. 1 and 3, the dental model 8 is grasped by the manipulator and pressed on the positioning pin 4, the dental model 8 is provided with a ring groove for the insertion of the positioning pin 4, and the inner wall of the ring groove is provided with a groove 9 for the interference of the steel ball 6. Under the action of the manipulator, the manipulator enables the annular groove of the tooth mold 8 to be close to one end, close to the steel ball 6, of the positioning pin 4, and the two steel balls 6 compress the spring 7 under the pressure of the annular grooves. With the continuous pressing of the manipulator on the tooth mold 8, the steel ball 6 can be just clamped at the groove 9, and the steel ball 6 can be stably clamped at the groove 9 by the elastic force of the spring 7. Through the above-described steps, the dental cast 8, the positioning pin 4, and the universal base 1 are fixed. Put into the production line with general base 1 again, industrial robot passes through the general base of industry camera discernment 1 and snatchs general base 1 and dental cast 8 to the locating platform of bead cutter on, processes dental cast 8 through the bead cutter.
As shown in fig. 3, the pin housing 5 comprises a top portion and a tail portion, wherein the top portion and the tail portion are integrally arranged and respectively have a conical shape and a cylindrical shape, and the length of the tail portion ranges from d2, about 8.98mm to 9.02mm, and is preferably 9 mm. The overall length of the pin housing 5 ranges from d3, approximately 12.48-12.52mm, preferably 12.5 mm. The tail has a diameter in the range d1, about 5.986-6.014mm, preferably 6 mm.
One end of the top part inserted into the tooth mould 8 is provided with a 0.3mm round angle which is R0.3. And a chamfer of 0.5mm is arranged at one end of the tail part far away from the top, namely C0.5. The included angle of the longitudinal section of the end of the top part inserted into the dental cast 8 is 60 degrees.
The above detailed description merely describes the preferred embodiments of the present invention and does not limit the scope of the present invention. Without departing from the design concept and spirit scope of the present invention, the ordinary skilled in the art should belong to the protection scope of the present invention according to the present invention provides the text description and drawings to the various modifications, replacements and improvements made by the technical solution of the present invention. The scope of protection of the present invention is determined by the claims.
Claims (8)
1. A micro positioning pin capable of automatically positioning and clamping is characterized by comprising a universal base, wherein a plurality of mounting holes penetrating through the surface of the universal base are formed in the universal base, a hexagonal screw is connected with each mounting hole in a threaded manner, a positioning pin is fixed at the end part of the hexagonal screw in a threaded manner,
the positioning pin comprises a bullet-shaped pin shell, two steel balls are arranged in the pin shell, a spring is arranged between the two steel balls, the two steel balls are connected through the spring, the two steel balls are arranged in the pin shell in a relative sliding mode, the sliding direction of the steel balls is perpendicular to the axis of the pin shell, and under the elastic force of the spring, a part of each of the two steel balls protrudes out of the outer wall of the pin shell.
2. The self-locating clamping micro positioning pin according to claim 1, wherein the pin housing has a length in the range of 12.48-12.52 mm.
3. The self-positioning clamping miniature locating pin according to claim 1, wherein said pin housing comprises a top portion and a tail portion, wherein said top portion and said tail portion are integrally formed, and respectively have a "conical" shape and a "cylindrical" shape, and the length of said tail portion is in the range of 8.98-9.02 mm.
4. The miniature locating pin capable of being automatically located and clamped according to claim 3, wherein the end part of the top part far away from the tail part is provided with a round angle of 0.3 mm.
5. The miniature locating pin capable of being automatically located and clamped according to claim 3, wherein the end part of the tail part, far away from the top part, is provided with a chamfer of 0.5 mm.
6. The self-locating clamping micro positioning pin as claimed in claim 3, wherein the tail portion has a diameter in the range of 5.986-6.014 mm.
7. The self-locating clamping micro positioning pin as claimed in claim 3, wherein the included angle of the top longitudinal section is 60 degrees.
8. The self-positioning clamping miniature locating pin as claimed in claim 1, wherein there are 3 said mounting holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020638840.1U CN212072141U (en) | 2020-04-24 | 2020-04-24 | Miniature positioning pin capable of automatically positioning and clamping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020638840.1U CN212072141U (en) | 2020-04-24 | 2020-04-24 | Miniature positioning pin capable of automatically positioning and clamping |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212072141U true CN212072141U (en) | 2020-12-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020638840.1U Active CN212072141U (en) | 2020-04-24 | 2020-04-24 | Miniature positioning pin capable of automatically positioning and clamping |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212072141U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115095589A (en) * | 2022-06-22 | 2022-09-23 | 四川航天长征装备制造有限公司 | Connecting pin |
-
2020
- 2020-04-24 CN CN202020638840.1U patent/CN212072141U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115095589A (en) * | 2022-06-22 | 2022-09-23 | 四川航天长征装备制造有限公司 | Connecting pin |
| CN115095589B (en) * | 2022-06-22 | 2023-06-02 | 四川航天长征装备制造有限公司 | Connecting pin |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20221221 Address after: Room 801, 8th Floor, Building 1, No. 1188, Qinzhou North Road, Xuhui District, Shanghai, 200000 Patentee after: Shanghai Weiyun Industrial Group Co.,Ltd. Address before: 210000 Room 201, building 2, No.2, Shuanglong street, Qinhuai District, Nanjing City, Jiangsu Province Patentee before: Nanjing Jiahe Dental Technology Co.,Ltd. |
|
| TR01 | Transfer of patent right |